Attachment for printing-presses.



W. J. DANINGBURG.

ATTACHMENT FOR PRINTING PBESSES.

APPLICATION FILED JULY 5, 1910.

978,704. Patented Dec. 13,1910.

Wiinesses: 3; Q [amen tor:

N ffifim n il illiam dfDanin bur l 1 UNITED wnpnirama .1. 'DA'NINGBUBG',or NEW YORK, N. Y.

- ATTACHMENT .303 PRINTING-P3315538.

" Specification of Letters Patent.

Patented Dec. 13,1910.

' Application flle'd J'uly 5, 1910. Serial No. 570,374. I

Be it known that I, WILLIAM J. iJANING- To alt whom it may concern: I l

- device from the right hand end.

, ing embodiments 0 none, a citizen of the United States,"residing inNew York city,

certain new and useful Improvements in Attachments for Printing-Presses,of which the following is a specification.

heat

This invention has for its object to vicle means for producing anintense in close proximity to the cylinder of a print: ing pressadjacent the guides by electrical means, at the same time to prevent anydangelof fire from undue heat beingcommunirated to the paper that-isbeing printed and delivered. i a

A further object is to provide means for readily controlling theamountor intensity of the heat generated.

'In the accompan ing drawing representmy invention Figure 1- shows thedevice in section, as applied to a press. Fig. 2-shows enlargedavertical section through one end portion of the device. Fig. 3 is afragmentary view showing the other end. Fig. 4 is an end elevatigipn ofthe i 5 is a fragmentary bottom plan view, and Fig. 6 is a sectionthrough one of the plugs or terminals.

The device is shown as comprising a shell 7- shown as somewhatsemi-circular and is suitably supported by arms 8 from the cross in thecounty of New York and State of New York, have inventedthis means t bar9 that sup orts the guides 10 for a c linder press in t e usual manner.The gui es cooperate with the feed table 11 and are raised and loweredin the usual manner well known in the art. The shell 7 is supported tobe in close proximity to the cylinder 12 of the ress between the guideand the crossbar. en the paper is fed in, the bar rocks and the guiderises as is well understood, and hence the shell will rise also a s ortdistance. Upon completion of therevolution of the press the printedsheet will again pass under the guide rod 9 to be delivered to the tapesor the fly. At this time 'i the guide 10 is not raised and the shield 7will be in close proximity to the paper that at this portion of therevolution is held in contact with the cylinder.

The shell is provided with one or a series of electrical conductorsextending from end to end in the shell and removed from its bottom planeso that they will not be too near the paper or cylinder. Threeconductors l3,

ities of the bands, wires 19, 20 and 21 connect with three terminals 22,23 and 24 whereby each of the bands has a se arate term1 nal.- Springlugs 25, 26 and 2 are provided, one of w ich is shown separately in Fig.6, and connect by'wires 28, 29 and 30 with a lead wire'31; Each of theseplugs 17 with a terminal 18. At the other extremcomprises an insulatingshell 32 and a conducting sleeve '33 that islongitudinally s lit tofrictionallv engage the plugs 22 24'. l3y e current flowing in throughwire 31 and having exit ,through wire 18, can be'caused to pass throu' hany one, or two, or'all of the three ban s as desired. And

by having these bands oLditferent ohmic resistance, seven differentcombinations can be produced. Preferably the current is taken from theresistance box of the electric motor that operates the press, whendriven by a motor. Hence as the current is increased or diminished theamount of heat generated will vary according to the duty required. Thesebands preferably are supported by asbestos blocks 36, 37 on opposltesides that are suspended by lugs 38 from -the shell 7. And. the shell 7that is preferably of metal is shown provided with a lining of-asbestos39. At each end the bands are elastically supported to prevent theirsagging when they become heated s would otherwlse" be the case. Thecross ar '16 is connected by wire coils 41 and 42 with an insulatedpiece 43 secured in the end casing 44 of the shell. At the other end thebands .have springs 45, 46 and 47 connecting them with an insulatingblock 48 secured in the end casing 49. It will be seen that these bandsare placed some distance inside of thev bottom plane of the shell.

At the bottom of the shell is preferably provided an insulating band orplate, to prevent any possibility of the wires sagging to engage thepaper or the paper rising up to,

engage the wire; thus preventing any possibility of fire or undulyheating the paper. The shell is provided at its bottom wit a plate 50 ofperforated metal that is held in place by lugs 51 bent inwardly at thebottom of the shell. On top of this plate inside of the casing is placeda thin layer or sheet of suitable insulating material such as asbestos52, that will permit heat to be radiated from the device yet absolutelyprevent any 1 the outside and by the asbestos lining of i the shell 39on the inside. heating device is to take the dampness and moisture ofthe sheet before it passes around the cylinder and is printed. And whenthe trical heater, it will have the effect of drying and setting theink, and thereby preventlng the effect known as offset when the sheetsjogged up. This heater will also perform the function of removing orpreventing the static electric charge that is frequently prestheir beinglined up on the delivery hoard.

Having thus described my invention, 1 claim:

1. In a cylinder press, the combination with the cylinder, the feedtable and the guides. of a shell extending across the cylinder in closeproximity thereto a short distance beyontLthe guides, electricconductors extending longitudinally in the shell located inside of thebottom plane of the shell. and an insulating plate carried by the shellbelow the conductors.

2. In a cylinder press. the combination with the cylinder. the feedtable and the guides. of a shell extending across the cylinder in closeproximity thereto near the guides. electric conductors extendinglongitudinally in the shell located inside of the bottom plane of theshell, said shell being The eifectof this carried by the lllde supportsof the press to be raised and lowered therewith.

In a cylinder mess, the combination with the cylinder, the feed tableand the guides, of a shell-extending across the cylinder in proximitythereto a short distance beyond the guides, electric conductorsextending longitudinally in the shell and located inside of the bottomplane of the shell. and spring inenibeis at the end portions of theconductors, the said springs having their connection with the shellinsulated therefrom.

4. In a cylinder )ress, the combination with the cylinder, the feedtable and the 3 guides. of a shell extending across the cylprintedsheetagain passes beneath the elecinder in proximity thereto a shortdistance !beyond the guides, electric conductors extendinglongitudinally in the shell and located inside of the bottom plane ofthe shell, are delivered, and especially when tlie are 1 spring membersat the end portions of the conductors, the said SPX'IIIU'S having theirconnection with the shell insulated therei from. the device having aterminal at one entin printed sheets which tends to prevent endconnected with the conductors independent of the springs, the other endof the device hating a separate terminal for each conductor, and a wireconnecting the terminals with each of the said conductors.

I). In a cylinder press, the combination with the cylinder. the feedtable and the guides, of a shell extending across the cylinder in closeproximity thereto a short distance beyond the guides, electricconductors extending longitudinally in the shell located inside of thebottom plane of the shell, an insulating plate carried by the shellbelow the conductors, and a strip of metal outside of said insulatingstrip.

WILLIAM J. DANIXGB URG.

\Vitnesses: V

Flinn. J. Donn, WILLIAM H. REID.

